Essays about: "effect of uncertainty"

Showing result 16 - 20 of 220 essays containing the words effect of uncertainty.

  1. 16. Comparison of two methods in deriving aquatic predicted no-effect concentration (PNEC) for α-Amylcinnamaldehyde, 1-Tridecanol and Paracetamol

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Emma Holmén; [2019]
    Keywords : PNEC; Environmental risk assessment; ERA; α-Amylcinnamaldehyde; 1- tridecanol; paracetamol; Species Sensitivity Distributions; SSD; ECHA; Guidance on information requirements and chemical safety assessment; Earth and Environmental Sciences;

    Abstract : This study is evaluating two methods in order to calculate predicted no effect concentrations (PNECs) used in environmental risk assessment for three chemicals (α-Amylcinnamaldehyde, 1-tridecanol and paracetamol). The methods used are Species Sensitivity Distributions (SSD) and the guideline from European Chemicals Agency (ECHA): “Guidance on information requirements and chemical safety assessment”. READ MORE

  2. 17. Numerical and experimental dynamic analyses of the Vega Pedestrian bridge including seasonal effects

    University essay from KTH/Bro- och stålbyggnad

    Author : John Hallak Neilson; [2019]
    Keywords : ;

    Abstract : As timber structures become increasingly relevant and sought after – since they enable improvements in building time while reducing a structure’s life cycle impacts – streamlining their design can have meaningful economic and environmental implications.For timber footbridges, its design is frequently governed by serviceability criteria linked to excessive vibrations. READ MORE

  3. 18. Numerical and experimental dynamic analyses of the Vega Pedestrian bridge including seasonal effects

    University essay from KTH/Bro- och stålbyggnad

    Author : John Peter Hallak Neilson; [2019]
    Keywords : Structural dynamics; Timber structures; Seasonal effects; Asphalt; Footbridges; Arch bridges; Dynamic analysis;

    Abstract : As timber structures become increasingly relevant and sought after – since they enable improvements in building time while reducing a structure’s life cycle impacts – streamlining their design can have meaningful economic and environmental implications. For timber footbridges, its design is frequently governed by serviceability criteria linked to excessive vibrations. READ MORE

  4. 19. A COMPARISON OF THE OBSERVED WAKE EFFECT WITH SEVERAL WAKE MODELS USING BOTH ANALYTIC AND CFD SIMULATION METHODS - FOR THE CASE OF BLOCK ISLAND OFFSHORE WIND FARM

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Robbie Pratt; [2019]
    Keywords : Block Island Wind Farm; Offshore Wind Power; Wake Effect; Wake Modelling; WindPRO; WindSIM; Openwind; CFD modelling.;

    Abstract : This paper sets out to analyze the observed wake effect at Block Island Wind Farm. A comparison is made between several wake simulation methods and the observed data at Block Island using analytic and CFD (Computational Fluid Dynamics) modelling methods. READ MORE

  5. 20. Using airborne laser scans to model roughness length and forecast energy production of wind farms.

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Joris Valee; [2019]
    Keywords : Forest Management; Airborne Laser Scan; Roughness Length; Displacement Height; Wind Power; Annual Energy Production; MATLAB; WindPRO;

    Abstract : Successful wind power projects start with a realistic representation of the surface, more specifically the surface roughness of the site. This thesis investigates the use of airborne laser scans to model the surface roughness around a new wind farm. READ MORE